Gizachew Fenta Inyew
College of Agriculture and Environmental Science, Haramaya University, Ethiopia
Publications
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Research Article
Effect of Jatropha curcas L. Press-cake and Inorganic NP Fertilizers on the Productivity of Potato (Solanum tuberosum L.) and Soil Properties
Author(s): Gizachew Fenta Inyew* and Tena Alamirew Agumassie
Low soil fertility is a major constraint to potato production in Ethiopia. A field experiment was conducted at rare research farm, main campus of HU in Ethiopia, during the main growing season of 2011 under supplementary irrigation to evaluate the effects of J. curcas L. press-cake and inorganic NP fertilizers on the productivity of potato (S. tuberosum L.) and soil properties. The treatments consisted of four rates of J. press-cake (0, 2, 4 and 6 t ha-1) and 5 rates of combined mineral NP (0 + 0; 0 + 46; 50 + 0; 50 + 46; 100 + 92 kg N + P, respectively, ha-1) fertilizers. The experiment was laid out as a RCBD in a factorial arrangement and replicated three times. The plot sizes were 3.75 m x 3.9 m. The distance between plots and blocks was maintained at 1 and 2 m, respectively. All agronomic and soil data were collected and analysis of variance was done. The results indicated that J... Read More»